baber/WOPTO huggingface dataset:
Patent JP-H01148071-A (JP)
Title: Power unit
Inventor: KAMATA AKIRA
IPC: H02M7/217
Filed: 1987-12-04
Abstract: PURPOSE:To reduce noise and to keep an output voltage constant by changing an inductor current waveform through a first control means in such a manner that the waveform follows a voltage waveform and by making the output voltage of a chopper circuit equal to a reference voltage through a second control means. CONSTITUTION:In a differential amplifier 33, the waveform of an input V1 of a chopper circuit 20 is compared with the waveform of an electric current I1 of an inductor L1, and the ON-time of a switching element Q1 is changed by a PWM circuit 31 so that a current waveform changes in a manner that the waveform follows a voltage waveform. At the ON-time, energy is accumulated in the inductor L1, and at the OFF-time, an electric current by an energy release is supplied to a capacitor C1. In the pulse width control for the voltage and current waveforms. The higher an input voltage V1, the shorter the ON-time of the switching element Q1 is made. Therefore, the change of current waveform coincides with that of the voltage waveform. Also, the ON-time of said switching element Q1 is made shorter when an output voltage V2 is too high, and made longer when the voltage V2 is too low, so that the output voltage V2 is caused to approach a reference voltage VS.
Patent JP-H11141773-A (JP)
Title: Pipe joint
Inventor: NISHINO KATSUHIKO
IPC: F16L33/22
Filed: 1997-11-07
Abstract: PROBLEM TO BE SOLVED: To provide a pipe joint which enables a pipe to be locked in place by the screwing in of a push ring when the insertion length of the pipe in the end connection part of a joint member is sufficiently long, and which enables the insufficient insertion length of the pipe to be recognized as the push ring cannot be screwed in if the insertion length is not enough. SOLUTION: In a pipe joint in which the diameter of a locking ring 30 is reduced by the action of a guide surface 16 when a push ring 20 is screwed into a joint main body 10, locking ring support 40 is fitted into the locking ring 30. When a pipe is deeply inserted, the locking ring support 40 is pushed out of the locking ring 30 and the push ring 20 can be screwed in. When the insertion length of the pipe is not enough, the locking ring support 40 is not pushed out of the locking ring 30.
Patent JP-H05140962-A (JP)
Title: Soil/sand conveying vehicle
Inventor: NOJIMA HIROSHI
IPC: E02F3/30
Filed: 1991-11-21
Abstract: PURPOSE:To eliminate risk of disturbance and destruction of the ground, enhance the soil exhausting efficiency, and improve the easiness in works. CONSTITUTION:On a traveling frame 47 equipped with a crawler 47, a revolving base 14 is mounted rotatably 180 deg. to the left and right round the center vertical shaft of the frame 47 and is fitted with a slide base 26 slidably in the longitudinal direction of the revolving base 14. Rotatably round a horizontal shaft, a transport bucket 20 serving also as a shovel is pivoted at the end of an arm 23, which is pivoted at this slide base 26 rotatably in the vertical direction.
Patent JP-H10147780-A (JP)
Title: Soil material and its production and use
Inventor: UMEHARA JIRO
IPC: A01N25/08
Filed: 1996-11-18
Abstract: PROBLEM TO BE SOLVED: To obtain a soil material which supplies, slowly, surely over a long term, an ingredient contained therein to soil on which plants grow by incorporating at least one substance selected from among fertilizers, agrochemicals, and natural extracts into a porous material. SOLUTION: This material comprises porous material (pref. comprising natural rock, still pref. shirasu) and at least one substance incorporated thereinto and selected from among fertilizers, agrochemicals, and natural extracts pref. obtd. from plants (e.g. wood vineager) and is produced by forcing at least one substance selected from among fertilizers, agrochemicals, and natural extracts into a porous material under pressure. For instance, when a base of a green 3 of a golf course is formed from shirasu 1 contg. wood vineager and turf mats 4 are placed thereon, then a growing base for turf is formed and wood vineager contained in shirasu is slowly supplied to the roots of the turf 4 with each rainfall, thus preventing the turf from being damaged by disease and harmful insects.
Patent JP-H09147396-A (JP)
Title: Laser power abnormality detector and optical disk device using the same
Inventor: TAKIGUCHI TAIZO
IPC: G11B7/125
Filed: 1995-11-24
Abstract: PROBLEM TO BE SOLVED: To provide a laser power abnormality detector capable of easily discriminating whether a laser power is within a prescribed range or not and an optical disk device using the detector. SOLUTION: A signal PM is supplied to a generation part 21 by detecting the laser power of a laser diode 11 with a photodiode 15. A driving signal DR is generated based on the signal RE from a selection part 20 and the signal PM. A transistor 12 is driven by the signal DR and also whether the laser power is within the prescribed range or not is detected by comparing the signal DR with an upper limit signal DU and a lower limit signal DL in comparator parts 41, 42. When the signal DR is larger than the signal DU, the output of a laser beam is stopped by changing the changeover part 22 to the side of a terminal 22b based on signals CT1, SD. When the signal DR is smaller than the signal DL, the laser beam is made to be of power at the time of reproducing data by selecting a reproducing power reference signal RRE based on signals CT2, SP.  Moreover, the deterioration of the laser diode 11 is detected by comparing a signal DM with a signal LM in a comparator part 45.
Patent JP-2001125942-A (JP)
Title: Design data management system, its controlling method and recording medium
Inventor: NAGASAKA KENGO
IPC: G06F17/50
Filed: 1999-10-28
Abstract: PROBLEM TO BE SOLVED: To provide a design data management system capable of selecting and distributing design data necessary to an application section by storing and managing design data prepared and registered by a person in charge of design and information concerning the design data, connecting the system itself to local information communication network and transmitting the design data and the information concerning the design data through the network. SOLUTION: A selecting condition for narrowing down design data necessary to a person in charge in an individual application section is previously and individually set up in the design data management system and registered and stored in an independent distribution DB and information concerning the design data which is narrowed down by the individual selecting condition is distributed to the person in charge in the application section. A control program for setting up the individual selecting condition for narrowing down the individual distribution destination and the information concerning the design data to be distributed to the individual distribution destination is stored in a computer readable recoding medium.
Patent JP-2000122696-A (JP)
Title: Sound encoder, optical recording medium and sound decorder, and sound transmitting method
Inventor: TANAKA YOSHIAKI
IPC: G10L19/00
Filed: 1998-10-13
Abstract: PROBLEM TO BE SOLVED: To improve a compression rate when sound signals of plural channels are prediction-encoded, considering that a high correlation exists between superordinate bit data in respective channels for sound signals of the plural channels, and that a correlation does not exist between slave bit data. SOLUTION: An adder circuit 1a calculates a sum signal (L+R) of stereo 2 ch signals L, R to be output to an 1ch lossless encoder 2D1 for a sum ch. A subtracter circuit 1b calculates a differential signal (L-R) to be output to an 1ch lossless encoder 2D2 for a differential ch. The encoders 2D1, 2D2 prediction-encode differentials Δ(L+R), Δ(L-R) of sum signals (L+R) and differential signals (L-R) in superordinate sixteen bits out of respective twenty four bits, and transmits slave eight bits in a condition as they are, via a recording medium or a communication medium.
Patent JP-H06131532-A (JP)
Title: Coin counting processor
Inventor: IKEZAWA TOSHIAKI
IPC: G07D9/04
Filed: 1992-10-19
Abstract: PURPOSE:To shorten a counting time by collectively withdrawing coins stored in each denomination storing part at the time of withdrawing coins, measuring the whole weight of coins in each denomination and computing the total number of collectively withdrawn coins based on the measured value. CONSTITUTION:When the storage capacity of a change hopper 23 e.g. is filled with coins on the way of transaction of an automatic ticket issuing machine 11 provided with a coin processor 19 having a batch counting function, a signal for collectively withdrawing coins in order to continuously operate the processor 11 is outputted, the side doors of respective sorted change hoppers 23 are opened and collectively withdrawn to respective withdrawing cashboxes. After withdrawing coins in each cashbox, the total weight of many collectively withdrawn coins stacked on the bottom of each cashbox 26 is measured and a CPU finds out the total number of coins by operation and displays the operated result. Thereby the total number of coins in each sort can be instantaneously counted up, and even when many changes stored and waited in the cashbox are left, their withdrawing and extracting time can surely be shortened.
Patent JP-H09124337-A (JP)
Title: Production of optical material of quartz glass for ultraviolet laser
Inventor: FUJINOKI AKIRA
IPC: C03C23/00
Filed: 1995-10-31
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a synthetic quartz glass material for ultraviolet laser optics having excellent stability against ArF excimer laser of 193nm in wave length and a 5-times harmonic of YAG laser of 213nm in wave length by removing defects attributable to hydrogen generated during the production of a synthetic quartz glass by oxyhydrogen flame or defects attributable to hydrogen in a high-temperature hydrogen treatment. SOLUTION: In order to modify a quartz glass optical material to endure the irradiation of a laser having a short wave length, the quartz glass optical material is doped with hydrogen atoms of >=2×10<17> molecules/cm<3> and <=5×10<19> molecules/cm<3> , preferably >=5×10<17> molecules/cm<3> and <=5×10<18> molecules/cm<3> during the production of a synthetic quartz glass and/or in a tail-end process. Reductive defects caused by hydrogen in these processes are removed by irradiating ultraviolet rays of 150nm to 300nm in wavelength without damaging the structure of quartz glass. This process enables the production of the quartz glass having strong resistance even against the irradiation of the above- mentioned laser.
Patent JP-H04183252-A (JP)
Title: Method of starting sensorless motor and starting circuit
Inventor: KANEDA ISAO
IPC: H02K29/00
Filed: 1990-11-13
Abstract: PURPOSE:To start a rotor without causing inversion by supplying a driving coil with pulses of high frequency so as to oscillate a rotor, and detecting the rotational angle of the rotor, and then, supplying it with pulses of low frequency. CONSTITUTION:Driving coils 2u. 2v, and 2w are supplied with driving pulse currents of high frequency, which do not rotate them, so as to oscillate a rotor 1. By this oscillation, an oscillating voltage is induced in the driving coils, and a detection signal is gotten from a counter-electromotive force detection circuit 6. In the event of the rotational position of the rotor getting known by this detection signal, an instruction signal according to the rotational signal of the rotor is sent from a current application changeover logical circuit 7 to a current application changeover circuit 8, and in a phase changeover circuit 9, a signal for supplying the driving coils with currents according to the low frequency suitable for rotating the rotor is made. This way, the rotational position of the rotor can be known, so the rotor can be started without casing the inversion based on this rotational position.
Patent JP-H10146312-A (JP)
Title: Image pickup device
Inventor: SUZUSHIMA HIROSHI
IPC: H04N7/18
Filed: 1996-11-18
Abstract: PROBLEM TO BE SOLVED: To shield an incidence of the external light on a peripheral part of an image pickup surface of a solid image pickup element, and obtain an endoscope image having an excellent image quality by arranging an opening part of a light shielding mask so as to be eccentric in the desired direction to the optical axis of an observing optical system. SOLUTION: An image pickup device 20 arranged in an inserting part tip part of an electronic endoscope is composed of an objective lens unit 21 being an observing optical system, an SID 22 where an image pickup surface 22a is arranged in its focal position, a light shielding mask 27 adhered and fixed to a front face of cover glass 23 or the like, In this case,  an opening part 27a of the light shielding mask 27 is formed by being positionally dislocated to the image pickup surface 22a so that the image pickup surface 22a becomes narrow only on the side positioned on the opposite side of the side where a clamp channel is arranged in order to prevent its reflected light from being made incident on the image pickup surface 22a by being reflected by a side surface of the cover glass 23 when the illuminating light irradiated toward an object is reflected to a gripping clamp projecting from a tip surface of the endoscope. Therefore, the harmful reflected light incident on the image pickup surface 22a can be eliminated.
Patent JP-S63161155-A (JP)
Title: Formation of colored tin film
Inventor: KITAMURA KEIMEI
IPC: C23C14/48
Filed: 1986-12-23
Abstract: PURPOSE:To form a TiN film or TiCN film having different color tones by varying the speed of ions and introducing gaseous N2 or gaseous hydrocarbon from another supply system into a vacuum vessel at the time of forming the TiN film with Ti vapor while projecting an N ion beam to a base material in said vessel. CONSTITUTION:The gaseous N2 is supplied to an ion gun 3 in the vacuum vessel 1 in which the base material 4 is set to generate the N ion beam 11 and an electron beam 2C from a filament 2b is projected to Ti 12 in a crucible 2a to evaporate the Ti so that the vapor thereof is brought into collision as Ti vapor flow 13 against the surface of the base body 4. The TiN film is thus formed on the base 4. The evaporation rate of the Ti measured by a sensor 14 is changed by a controller 15 and the speed of the N ion beam 11 is changed by a speed changing electrode 5 of the ion gun 3 in this case; otherwise, the gaseous N2 is supplied from a cylinder 8 of another supply system B to the vessel to form the TiN film which is varied in the ratio of Ti:N2 on the surface of the material 4. The gaseous hydrocarbon is otherwise introduced from a cylinder 9 into the vessel to form the TiCN film. The TiN film or TiCN having variation in the color tones is thus formed.
Patent JP-S63160061-A (JP)
Title: Reproducing device
Inventor: ISHIDA KEIICHI
IPC: G11B20/10
Filed: 1986-12-23
Abstract: PURPOSE:To eliminate loss of data after the address and correction even if a block interval is reduced by providing a control circuit generating a signal to identify a code timing signal and an error correction code from a block timing signal and a register storing the address information from an ID code at each error correction code. CONSTITUTION:A register 111 fetches a memory address of a register 110 and a code identification signal 123 obtained from a control circuit 112 by using a code timing signal 124. The control circuit 112 generates code timing signals 124, 125 and the code identification signal 123 from the block timing signal 122 detected by a synchronizing detector 104. A processing circuit 113 obtains the said address and the address of the memory corresponding to the code identification signal from the address and the code identification signal stored in the register 111 for one code time within one code time and gives a correct memory address 126 to the memory 109. Thus, even if the interval of the signal 122 is made narrow by the clock error, the correct data before the said block is not lost when the address processing is finished in the unit of codes.
Patent JP-S63158888-A (JP)
Title: Manufacture of semiconductor laser device
Inventor: TERASHIGE TAKASHI
IPC: H01L21/302
Filed: 1986-12-23
Abstract: PURPOSE:To obtain an etching side surface having excellent perpendicularity, flatness and smoothness by selectively forming an etching mask onto a semiconductor laser wafer and etching an etching surface exposed through vapor phase etching of the semiconductor laser wafer through liquid phase etching. CONSTITUTION:Ti is evaporated as an etching mask onto a semiconductor laser wafer having double-hetero structure, in which InGaAsP 2 and P-InP 3 are liquid-grown onto an N-InP substrate 1 in succession. The mask is patterned through a lift-off method, the selective etching of Ti or the like. A flow is generated on an etching side surface by vapor phase etching through a reactive ion etching method using Br2 gas so as to reach the N-InP substrate 1, and a side surface 5 having irregularities is shaped. The etching side surface 5 is changed into a flat and smooth side surface 6 by liquid phase etching by employing the mixed liquid of HBr:CH3COOH:K2Cr2O7 aqueous solution=1:1:1. Accordingly, the vertical, flat and smooth etching side surface is acquired easily thus obtaining an excellent resonator.
Patent JP-H06155527-A (JP)
Title: Mold
Inventor: YAMASHITA TADAO
IPC: B29C33/44
Filed: 1992-11-17
Abstract: PURPOSE:To provide a mold whose operation of an ejector pin to eject a molded product is smooth and reliable. CONSTITUTION:A mold wherein an ejector pin 4 is provided by penetrating through a template 21, one end 41 of the ejector pin 4 enters a recessed part 52 having a tilted surface provided on the side of the ejector plate 5 provided reciprocatably in a direction meeting at right angles with a moving direction of the ejector pin 4 at the time of mold clamping and the other end of the ejector pin 4 faces on a cavity surface 3.
Patent JP-H07138467-A (JP)
Title: Antistatic polyphenylene ether resin composition
Inventor: INOUE KAZUNARI
IPC: C08L25/04
Filed: 1993-11-15
Abstract: PURPOSE:To obtain a polyphenylene ether resin composition composed of a specific polyalkylene oxide and a polyphenylene ether resin having a specific substituent, exhibiting excellent permanent antistaticity and useful as parts, cases, etc., for electronic appliance. CONSTITUTION:This resin composition is composed of (A) 100 pts.wt. of a polyphenylene ether resin containing a polyphenylene ether resin having >=0.01mol of the unit having a substituent of formula I [R1 and R2 are H, an alkyl, a halogen, a (substituted)aryl; R3 and R3' are a (substituted) alkyl, either one is H] based on 100mol of phenylene ether unit or a mixture of the above polyphenylene ether resin with a styrene resin and (B) 3-30 pts.wt. of a polyalkylene oxide containing a polyalkylene oxide having a group of formula II, NH-CO-C(X1)=C(X2)-COOH (X1 and X2 are H, a halogen, an alkyl), formula III, formula IV ((n) is 0-10) or formula V in the molecule.
Patent JP-S63157290-A (JP)
Title: Character recognizing device
Inventor: SASE SHINJI
IPC: G06K9/62
Filed: 1986-12-22
Abstract: PURPOSE:To accurately extract a line graphic for a complicated KANJI (Chinese character) by preparing a standard pattern of line graphic expressed by strings of line segments in a reader to read a hand-written characters including KANJIs, varying the lengths of respective line segments independently of each other with the correlative positional relations among the respective line segments for the constraint condition, and making directional line elements correspondent to each other. CONSTITUTION:A two-dimension An input pattern A is a two-dimensional binary image, and is converted into four kinds of two-dimension directional images by a feature extraction part 3, and stored in a memory 4. By using these directional images and a standard pattern B stored in a memory 2, a line segment correspondence part 5 obtains a coincident graphic B* and its line segment correspondence degree Sp for each standard pattern, and the results are stored in memories 6, 7. Thereafter, by using the coincident graphic B* and an input pattern A, a background correspondence part 8 obtains a background correspondence degree Sn for each standard pattern, and the results are stored in a memory 9. Lastly, the using the line segment correspondence degree Sp and then background correspondence degree Sn, a decision part 10 obtains similarity degree S for each standard pattern, as well as the maximum value, and if the reliability is larger than a certain value, the category of the standard pattern which gave the value is made a decision result, but if the reliability is smaller than the certain value, the decision results is outputted as 'rejection'.
Patent JP-H02151604-A (JP)
Title: Manufacture of polypropylene
Inventor: SAITO JUN
IPC: C08F4/642
Filed: 1988-12-05
Abstract: PURPOSE:To produce a polymer excellent in transparency, crystallinity, etc., by polymerizing propylene using a catalyst which is a combination of a specific solid catalyst component containing a crystalline polymer of a halogen- substituted styrene with an organoaluminum compound. CONSTITUTION:A halogen-substituted styrene of formula I (wherein X is halogen; and R1 is H or alkyl) is polymerized using a Ziegler-Natta catalyst to produce a crystalline polymer of a halogen-substituted styrene comprising repeating units of formula II. The resulting polymer is added to a reaction system in an arbitrary step of the preparation of a solid titanium catalyst component to produce the solid titanium catalyst component containing 0.01-50wt.% above polymer. The solid catalyst component is combined with an organoaluminum compound (e.g. diethylaluminum monochloride) and, if desired, an electron donor to produce a catalyst. Then, propylene is (co)polymerized using the catalyst to produce a polypropylene.
Patent JP-H08190050-A (JP)
Title: Zoom lens
Inventor: SHIBATA HIROTOKU
IPC: G02B13/18
Filed: 1994-12-12
Abstract: PURPOSE: To provide a small zoom lens having a small number of constituting lenses, excellently compensated aberrations, the small total thickness of lenses and high performance by providing a first positive lens group and a second negative lens group including a specified lens component and satisfying a specified condition. CONSTITUTION: This zoom lens is provided, in order from the object side, with a first lens group G1 of a positive refractive power and a second lens group G2 of a negative refractive power. The first lens group G1 includes a second lens of a weak refractive power, a first negative meniscus lens, whose convex surface confronts the object side, arranged on its object side and a third lens of a positive refractive power arranged on the image side of the second lens. The conditional relations: -0.35<fW/fLW, 0<=D4 /D2 <1.3 are satisfied, where, fW: the focal distance of the whole system at the wide-angle end, fLW the focal distance of the first lens of the second lens group, D2 : the on-axis distance between the second lens and the first lens of the first lens group G1 and D4 : the on-axis distance between the second lens and the third lens.